The purpose of _status is unclear. All functions based on this variable seem to have no end-user value.

Recommendation: First consider if this is needed at all. Please note that messages cannot be sent by address(0) so currently, all status check is redundant.

Review if _activateOperator, _deactivateOperator, _transferOperator, _renounceOperator, hasActiveOperator, isActiveOperator are necessary.

If keeping, consider switching _status to an enum or adding documentation.

If removing, just check whether the operator is address(0)

References:

• Definition: https://github.com/erasureprotocol/erasure-protocol/blob/4a3d98ce023a264a9f3c7ba62ef77a9207bba5fe/contracts/modules/Operated.sol